### 11 videos in "Least Common Multiple and Greatest Common Factor"

## Factors, Multiples & Divisibility

Factors, Multiples & Divisibility

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This lesson consists of giving you the necessary "preliminaries" to do fractions. The tutor explains what are factors, divisors, prime and composite numbers, how to do prime factorization, GCFs, LCMs, multiples, and the rules of divisibility. He also explains how to use your graphing calculator to help you find the GCF, LCM and multiples.

- Basic Math: Lesson 5 - Factors, Multiples & Divisibility - This lesson consists of giving you the necessary "preliminaries" to do fractions. The tutor explains what are factors, divisors, prime and composite numbers, how to do prime factorization, GCFs, LCMs, multiples, and the rules of divisibility. He also explains how to use your graphing calculator to help you find the GCF, LCM and multiples.
- Higher Resolution Version of Lesson - Click this link to watch a higher resolution version of this lesson in Windows Media Video format.

- How do you find prime factors of a number?
- How do you find greatest common factor?
- How do you find least common multiple?
- How do you use GCF and LCD in problems?
- How do you find LCD and GCF on a graphing calculator?
- How can you find multiples of a number using a graphing calculator?
- What does it mean if two numbers are relatively prime?
- What are the rules of divisibility?
- How do you know if a number is divisible by 3 or 6 or 9?

Great lesson if learning how to find prime factors, Greatest Common Factors, Least Common Multiples, and how these can be applied to problems. You can also learn how to find these on a graphing calculator. A great step-by-step tutorial if learning any of these topics at any level!